This updated execution of the PUMA Smash 3. 0 features a soft upper with an updated eyelet stay design, a stitched-through padded collar, and a new heel design to give a fresh take to this classic look. The Soft Foam+ sockliner provides superior cushioning and optimal comfort for every step of the day. With all the hallmarks of one of PUMA's most classic shoe, including long, clean lines and the famous lateral Form strip, this tennis-inspired silhouette features a synthetic upper and beautiful butterfly wings on the hook-and-loop closure.